Title (en)

FIELD DEVICE WITH DYNAMICALLY ADJUSTABLE POWER CONSUMPTION RADIO FREQUENCY COMMUNICATION

Title (de)

FELDGERÄT MIT HOCHFREQUENZKOMMUNIKATION MIT DYNAMISCH EINSTELLBAREM ENERGIEVERBRAUCH

Title (fr)

APPAREIL DE TERRAIN AVEC COMMUNICATION RADIOFREQUENCE A CONSOMMATION D'ENERGIE REGLABLE DYNAMIQUEMENT

Publication

EP 1896910 A1 20080312 (EN)

Application

EP 06774208 A 20060627

Priority

• US 2006025206 W 20060627
• US 69420105 P 20050627

Abstract (en)

[origin: US2006290328A1] A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop configured to carry data and to provide power. In one embodiment, RF circuitry in the field device is configured for radio frequency communication having variable power consumption. In another embodiment, the RF circuitry is coupled to the field device through a separate digital communication bus. A method of modulating the power of RF communication based upon a process communication signal is also provided.

IPC 8 full level

G05B 19/042 (2006.01)

CPC (source: EP US)

G01D 21/00 (2013.01 - EP US); G05B 19/4185 (2013.01 - EP US); G05B 2219/33192 (2013.01 - EP US); G05B 2219/34313 (2013.01 - EP US); Y02P 90/02 (2015.11 - EP US)

Citation (search report)

See references of WO 2007002769A1

Citation (examination)

US 2004124854 A1 20040701 - SLEZAK MARIAN JOZEF WALTER [NL]

Designated contracting state (EPC)

CH DE LI

DOCDB simple family (publication)

US 2006290328 A1 20061228; US 8452255 B2 20130528; CA 2602758 A1 20070104; CA 2602758 C 20160315; CN 101171555 A 20080430; CN 101171555 B 20120711; EP 1896910 A1 20080312; JP 2009501458 A 20090115; JP 4676000 B2 20110427; RU 2008103014 A 20090810; RU 2389056 C2 20100510; WO 2007002769 A1 20070104

DOCDB simple family (application)

US 47572606 A 20060627; CA 2602758 A 20060627; CN 200680015575 A 20060627; EP 06774208 A 20060627; JP 2008518521 A 20060627; RU 2008103014 A 20060627; US 2006025206 W 20060627